Defined Contribution Plan	12 Months Ended
Dec. 31, 2019
Defined Contribution Plan
Defined Contribution Plan	11. Defined Contribution Plan We sponsor a defined contribution plan that qualifies under Section 401(k) of the IRC to provide retirement benefits to substantially all of our employees. As allowed under Section 401(k), the plan provides tax-deferred salary deductions for eligible employees. Our matching contributions to the plan for the years ended December 31, 2019, 2018 and 2017 were $6.0 million, $6.8 million and $6.0 million, respectively. In 2017, in connection with the Pension Plan freeze, the Company amended its 401(k) plan to permit employer discretionary nonelective contributions to eligible participants. For the 2019 plan year, the Company approved a discretionary nonelective contribution in an amount equal to 2% of participant’s eligible compensation. These contributions, which were expensed during 2019, totaled $2.6 million and will be funded and allocated to participant accounts during the first quarter of 2020. For the 2017 plan year, the Company approved a discretionary nonelective contribution in an amount equal to 4% of such participant’s eligible compensation. These contributions, which were expensed over the service period in 2017, totaled $5.5 million and were funded and allocated to participant accounts during the first quarter of 2018.

Defined Contribution Plan

12 Months Ended

Dec. 31, 2019

11. Defined Contribution Plan

We sponsor a defined contribution plan that qualifies under Section 401(k) of the IRC to provide retirement benefits to substantially all of our employees. As allowed under Section 401(k), the plan provides tax-deferred salary deductions for eligible employees. Our matching contributions to the plan for the years ended December 31, 2019, 2018 and 2017 were $6.0 million, $6.8 million and $6.0 million, respectively.

In 2017, in connection with the Pension Plan freeze, the Company amended its 401(k) plan to permit employer discretionary nonelective contributions to eligible participants. For the 2019 plan year, the Company approved a discretionary nonelective contribution in an amount equal to 2% of participant’s eligible compensation. These contributions, which were expensed during 2019, totaled $2.6 million and will be funded and allocated to participant accounts during the first quarter of 2020. For the 2017 plan year, the Company approved a discretionary nonelective contribution in an amount equal to 4% of such participant’s eligible compensation. These contributions, which were expensed over the service period in 2017, totaled $5.5 million and were funded and allocated to participant accounts during the first quarter of 2018.